### Home > CC2 > Chapter 4 > Lesson 4.1.2 > Problem 4-19

4-19.

** **The pattern used in the Diamond Problems is shown at right. Homework Help ✎

What number plus

equals ? Multiply your answer by

to find the top portion of the diamond. Right:

Top:What two numbers add to

and, when multiplied together, equal ? See part (a).

See part (b).

and